The Young Mill-wright and Miller's Guide: Illustrated by Twenty-eight Descriptive Plates

Oliver Evans

Blanchard and Lea, 1860 - Flour mills - 400 pages

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ARTICLE PAGE 1 Preliminary Remarks	17

On the essential properties of bodies	18

Finding the velocity of a wheel theorem for 44 Maximum velocity of overshot wheels Table of velocities of	19

Axioms or laws of motion and rest	21

On absolute and relative motion	22

On momentum	23

On power or force and on the motive powers	24

On compound motion	26

Of the use of draughting to build mills	153

wind mills	154

Bills of scantling for a mill	155

Bills of iron work for a mill	156

108	157

129	158

Of fullingmills	159

PART II	160

Of nonelasticity and of fluidity in impinging bodies	27

Of falling bodies	29

Of spouting fluids	30

Of bodies descending inclined planes and curved surfaces	33

Of the motion of projectiles	34

Of circular motion and central forces	35

Of the centres of magnitude motion and gravity	38

Of the mechanical powers	39

Of the lever	40

General rules for computing the power of an engine	41

Of the different kinds of levers	42

Compound levers	43

Calculating the power of wheelwork	45

Power decreases as motion increases	46

No power gained by enlarging undershot waterwheels	47

No power gained by double gearing	48

Of the pulley	49

Of the inclined plane	50

Of the screw	51

Of the flywheel and its use	52

On friction	53

Principles of overshot mills	54

On the friction of different substances	55

Mechanical contrivances to reduce friction	56

Of maximums	58

Investigation of old theory	59

New theory doubted	63

Scale of experiments	65

Warings theory	67

The same continued	70

PAGE	71

96	96

97	97

Of pumps	106

Conveying water under valleys and over hills	108

Definite and indefinite quantities of water striking a wheel 60 Motion of breast and pitchback wheels	110

Calculating the power of a mill seat 62 Theory and practice compared	115

On canals for conveying water to mills	126

Table for overshot mills of different falls c c	129

Dressing shafts	130

Directions for laying out mortises for arms for putting in gudgeons	131

6 for constructing cogwheels	133

for making sills spurs and head blocks	134

Of the best time for cutting and method of seasoning cogs	135

Of shanking putting in and dressing off cogs	136

Of the little cog wheel and shaft	137

Directions for making wallowers and trundles	138

On their size and fall 66 Of air pipes to prevent trunks from bursting 67 Smeatons experiments concerning undershot wheels 68 69	140

CC	141

66	144

overshot wheels	147

6	148

แ for fixing the head blocks and hanging the wheels for sinking the balance ryne for bridging the spindle for making the crane and lighterstaff for m...	149

Of rolling screens	150

Of fans	151

Of the shaking sieve	152

OF THE DIFFERENT KINDS OF MILLS	161

Of overshot wheels with tables 72 Of breast and pitchback wheels with a table for them 70 Of undershot mills with a table of their proportions and po...	162

APPENDIX	178

Of matching wheels to make the cogs wear equally 83 Of rolling screens and fans	185

195	195

Of gudgeons preventing their heating c	207

Building mill walls 204 207	209

DESCRIPTION OF THE AUTHORS IMPROVEMENTS ARTICLE PAGE 87 General account of the authors improvements	211

Of the elevator conveyer hopperboy drill and descender	212

Application of the machines in manufacturing flour	216

Elevating grain from ships	219

A mill for grinding parcels	221

Improved grist mill	223

On elevating from ships c by horse power	225

On the same by manual power	226

Particular directions for constructing elevators c	229

Of the meal elevator	237

L meal conveyer	239

grain conveyer	241

hopperboy	242

L drill	244

Utility of these machines	246

Bills of materials for their construction	248

Mill for hulling and cleaning rice	251

Explanation of the principle of grinding	255

Of the draught necessary to be given to the furrows of millstones	258

Of facing millstones	262

Of hanging	264

Of dressing and sharpening the stones when dull	268

Of the most proper degree of fineness for flour	269

Directions for grinding wheat mixed with garlic c	270

Of grinding middlings over c	272

Of the quality of millstones to suit that of the wheat	275

Of bolting reels and cloths with directions for bolting and in specting floor	277

The duty of the miller	280

Peculiar accidents by which mills are subject to catch fire	282

Observations on improving mills	283

Prefatory remarks	285

Undershot mills and laying on the water	288

Directions for making forebays	289

Principle of undershot mills	290

Of breast wheels	293

Of pitchback wheels	294

Of the motion of overshot wheels	295

Of gearing	296

Description of an improved merchantmill On the construction of waterwheels by W Parkin c	299

Diameter of pitch circles	300

314	314

317	317

327	327

355	352

On the distance which bodies fall and the velocities acquired in consecutive periods of time with a table Comparison of different waterwheels by Mr ...	379

Strength and durability of the teeth of wheels	380

Of arranging the numbers of 6	385

Of making patterns for cast iron	386

Of malleable or wrought iron gudgeons Of the bearings of shafts On the framing of millwork On reaction wheels extracted from Franklin Journal De...	389

Common terms and phrases

16 feet head angle aperture ARTICLE bolting bottom buckets bushels cast iron central forces circumference cog-wheel column conveyer cubic foot distance divided double draught drive effect elastic elevator epicycloid equal equilibrio experiments feet diameter feet long feet of water feet per second feet stone float flour fluids foot friction furrows garner gate gear give grain gravity greatest grinding gudgeon half hoisted hopper hopper-boy impulse inches inches long inches wide inclined plane leading wheels lever load locity maximum meal mean circle mill-stone minute move multiplied nearly non-elastic number of cogs number of revolutions overshot wheel pass penstock perpendicular descent pitch circle plane Plate pressure principle produce proportion pulley quantity of water radius ratio revolutions per minute round rule scale shaft shute side spout square root strap suppose surface theory tion trundle turns undershot wheel velocity water-wheel weight wheat whole wrought iron

Popular passages

Page 43 - When the prop is at one end of the lever, the power at the other, and the weight between them.‎

Appears in 65 books from 1747-2006

Page 143 - The expense of water being the same, the effect will be nearly as the height of the virtual or effective...‎

Appears in 25 books from 1796-2008

Page 151 - In those experiments where the heads of water and quantities expended are least, the proportion is nearly as 4 to 3, but where the heads and quantities are greatest, it approaches nearer to that of 4 to 2 ; and by a medium of the whole, the ratio is that of 3 to 2, nearly. We have seen before, in our observations upon the effects of undershot wheels, that the general ratio of the power to the effect, when greatest, was...‎

Appears in 14 books from 1809-1875

Page 141 - That the virtual or effective head being the same, the effect will be nearly as the quantity of water expended.‎

Appears in 23 books from 1760-2008

Page 211 - These five machines are variously applied in different mills, according to their construction, so as to perform every necessary movement of the grain and meal, from one part of the mill to another, or from one machine to another, through all the various operations from the time the grain is emptied from the wagoner's bag, or from the measure on board...‎

Appears in 19 books from 1831-1970

Page 154 - Experience confirms that this velocity of 3 feet in a second is applicable to the highest overshot wheels, as well as the lowest ; and all other parts of the work being properly adapted thereto, will produce very nearly the greatest effect possible : however, this also is certain from experience, that high wheels may deviate further from this rule, before they will lose their power, by a given aliquot part of the whole, than low ones can be admitted to do ; for a wheel of 24 feet high may move at...‎

Appears in 14 books from 1760-1860

Page 144 - The aperture being the same, the effect will be nearly as the cube of the velocity of the water.‎

Appears in 31 books from 1760-2008

Page 138 - ... the sheet of water is not a quarter of an inch thick before it meets the float, yet this sheet will act upon the whole surface of a float, whose height is three inches...‎

Appears in 12 books from 1760-1860

Page 152 - ... or as 5 : 4 nearly ; and from the equality of the ratio between power and effect, subsisting, where the constructions are similar, we must infer, that the effects, as well as the powers, are as the quantities of water and perpendicular heights, multiplied together respectively.‎

Appears in 14 books from 1796-1863

Page 154 - ... confirms that the velocity of 3 feet per second is applicable to the highest overshot wheels, as well as the lowest; though high wheels may deviate further from this rule, before they will lose their power, by a given aliquot part of the whole, than low ones can be admitted to do ; for a 24 feet wheel may move at the rate of 6 feet per second, without losing any considerable part of its power.‎

Appears in 9 books from 1814-1860

Bibliographic information

Title	The Young Mill-wright and Miller's Guide: Illustrated by Twenty-eight Descriptive Plates
Author	Oliver Evans
Editor	Thomas P. Jones
Edition	15
Publisher	Blanchard and Lea, 1860
Original from	Harvard University
Digitized	25 Sep 2007
Length	400 pages

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The Young Mill-wright and Miller's Guide: Illustrated by Twenty-eight Descriptive Plates

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